From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Subject: Re: [PATCH] MIPS: implement a "bootargs-append" DT property
Date: Mon, 13 Nov 2017 04:42:33 -0800
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To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James Hogan <james.hogan@mips.com>, Linux MIPS Mailing List <linux-mips@linux-mips.org>, Rob Herring <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, Linux-Renesas <linux-renesas-soc@vger.kernel.org>
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On Mon, 2017-11-13 at 13:31 +0100, Geert Uytterhoeven wrote:
> I've seen other use cases, e.g. the extension of the du node's
> "clocks" and
> "clock-names" properties from arch/arm64/boot/dts/renesas/r8a7795.dtsi
> to
> arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts.
> 
> To avoid the proliferation of "-append" versions of existing
> properties, what
> about handling this in dtc, by adding support for an
> "/append-property/"
> keyword?

That would not address use case #2 that I mentioned, where the dtb would
have a "bootargs-append" property but no "bootargs" property.